I've had an s and now got an e and to be honest it really depends on what your needs are, yes the s came with high beem, horn, digi speedo, quiet muffler, indicaters, blaady blaa, but to ride it was????? well the best word to describe it is BLAND. Dont get me wrong it wasnt bad and it did everything I asked of it,,,,, apart from when I asked it to make me smile. Off road it was soft and sloppy and although it went where ever I pointed it, it never did it with any authority. On the road again it was ok but never really excited me. It never let me down and I didnt have to spend any money to make it legal but it was just a bit boring. The E on the other hand was great off road, I could keep up with my mates on CRF's and KTM,S take care of whoops, jumps ,power slides and ruts no problem and with the low end grunt it'd climb the side of a house if you could buy tires with enough grip, only problem is that I'm in the throws of supermotoing it and its costing me a small fortune to get it road legal cause of the lack of indicaters,full beem ect but it'll be worth it in the end.
Bottom line is:
If you want a commuter that you can trail ride at the weekend then buy an S
If you want a dirt bike that you can use on the road than buy an E
and if you want to wake up Monday morning with a big smile on your face then rent a hooker